Electric-circuit closer.



PATENTED AUG. 25, 1903.

C. HUBERT.

ELECTRIC CIRCUIT CLOSER.

APPLIOATION FILED JUNE 19, 1902.

H0 MODEL.

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No. 737,107. Patented August 25, 1903.

UNITED STATES PATENT OFFICE.-

CONRAD I'IUBERT, OF SPUYTEN DUYVIL, NEWV YORK.

ELECTRIC-CIRCU IT CLOSER.

SPECIFICATION forming part of Letters Patent No. 737,107, dated August 25, 1903.

Application filed June 19, 1902. Serial No. 112,281. (No model.)

lights, in which it is generally desired toclose the circuit only for a few seconds, while occasionally illumination for a longer period of time is required. Such devices are generally so constructed that pressure against the action of a spring is required to close the circuit, and as soon as the pressure is removed the circuit is opened. In my present invention I provide a circuit-closing arm under the action of a spring and so constructed that if the normal amount of pressure is applied thereto it will close the circuit only tempo rarily and will open it as soon as the pressure is released. If, however, a greater amount of pressure is exerted, the said arm will be locked in the circuit-closing position, so as to stay in such position even when pressure is removed. a

While many different constructions may be devised for effecting the purposes of my invention, I have shown in the accompanying drawings as an example one form of construction which I believe to be particularly simple and reliable.

In the accompanying drawings, Figure 1 is a side elevation of an electric flash-light embodying my invention. Fig. 2 is a plan View thereof, and Fig. 3 is a cross-section on line 3 3 of Fig. 1.

A indicates the cylindrical casing containing the batteries and the lamp, the light of which shines through the convex glass B.

O is a plate secured to the casing A and having an arm D hinged thereto at D.

0' represents springs struck up from the plate 0 and arranged to normally throw the arm D away from the casing A.

E is a contact adapted to be engaged by the arm D when the latter is pressed down against the tension of the springs C, and this contact may be projected from a ring E, surrounding the casing A. It will be understood that suitable connections are made from the plate 0 and ring E with the lamp and battery, so that the circuit will be closed by the engagement of the arm D wit-h the contact E. It will be obvious that normally if the arm D is released after having been brought in contact with the projection E the springs C will throw the arm away from the contact, and thus break the circuit.

In order to be enabled to close the circuit permanently,lprovidealockingdevice,which may be constructed after the style of a glovefastener, one member of said device being secured to the ring E and the other member to the arm D, as shown at D As shown,

the cup is fastened to the arm D and the stud to the ring E; but this arrangement may be reversed. I have also shown the stud in the double function of a contact and of a locking device, and while this is preferable for the sake of simplicity it is not absolutely necessary, as the locking device might have no connection whatever with the. electric circuit.

Of course I do not restrict myself to the specific form of the locking device, nor to the application of the circuit-closer to a flashlight, nor to the various details of construction shown in the accompanying drawings.

What I claim as new, and desire to secure by Letters Patent, is

1. A circuit-closer comprising two members, one movable relatively to the other and adapted for engagement therewith and having a tendency to spring therefrom, and a locking device comprising two elements secured to said members respectively, one of said elements being in the nature of a stud, while the other element is arranged to embrace the said stud and to clamp the same, to hold the members in permanent engagement with each other when a certain pressure is applied to the movable member, and to a1 low the said members to be separated from their locked position by a pull'on the movable member.

2. A circuit-closer comprising two mem bers adapted to be brought into and out of engagement, a stud on one of said members, a cooperating clamping-head on the other member to lock the two members together,

and means having a tendency to separate said 10 members.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

CONRAD HUBER'I.

Witnesses:

R. E. BARLoW, EUGENE EBLE. 

